How long after pistils Do buds form?

Once you switch to 12 hours the buds begin to form. This is also the point where you can identify and destroy any males before they have a chance to release any pollen. The flowering phase will last 8 to 12 weeks depending on the variety of plant. The plants are ready to harvest once the white trichomes go brown.

How long after white hairs do buds grow Autoflower?

Autoflowering plants usually grow for 3-5 weeks before starting to flower. To know the exact moment when plants will begin its flowering stage we need to look to the pistils (first sign of flowering stage).